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Photosynthesis under Field Conditions. XB. Origins of Short‐Time CO2 Fluctuations in a Cornfield 1
Author(s) -
Lemon E. R.,
Wright J. L.,
Drake George M.
Publication year - 1969
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1969.00021962006100030023x
Subject(s) - amplitude , range (aeronautics) , atmospheric sciences , photosynthesis , field (mathematics) , environmental science , chemistry , physics , materials science , optics , mathematics , biochemistry , pure mathematics , composite material
Studies of the vertical distributions of CO 2 fluctuation in a cornfield were made in the 4‐to 0.25‐cycle/min frequency range. Amplitude of fluctuations decreased with height above the ground. Frequency in this range appeared rather constant, however. Sources and sinks for CO 2 within the cornfield contribute to the fluctuations; however, eddy structure originating inside and/or outside the cornfield plays an important role too.